Final answer:
To convert 6 ounces of Phenergan to milliliters, multiply by the conversion factor 29.5735, which gives approximately 177.441 mL. After rounding, 180 mL should be dispensed.
Step-by-step explanation:
The question concerns the conversion of volumes from one unit to another, specifically from ounces to milliliters (mL), which is a common task in pharmacy calculations. In this case, a doctor writes a prescription for Phenergan 6 ounces, and you need to find out how many milliliters should be dispensed. To convert ounces to milliliters, we use the conversion factor that 1 ounce is approximately 29.5735 mL.
To find the amount to dispense in milliliters, we multiply 6 ounces by the conversion factor:
6 ounces x 29.5735 mL/ounce = 177.441 mL
Since medications are typically rounded to the nearest whole number, the closest answer option is 180 mL, which is option 2.